Impeovement ik



H. O. STORRS, OF NEW YORK, N. Y.

Letters Patent Np. 77,332, dated April 28, 1868.

IMPROVEMENT IN PLE-HANDLES.

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TO ALL WHOM IT MAY CONCERN:

Be it knownthat I, H. O. S'ORRS, of the city, county, and Stat-e of New York, have invented a new and useful Improvement in Means of Attaching Tools to Handlcs and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanyingdrawing, making a portion of this specificaton, in'whichg I Figura 1 is a side view and partial'section, showing a tool fitted to its handle according to my invention.`

Figure 2 is a detached section, showing one portion of the invention. t

This invention consists in an externally and internally-threaded holding-nut, so combined with a chamhered handle and the shank of a file, chisel, or similar tool, as to aliord a very secure and convenient means of attaching the tool to such handle, either permanently or temporarily.

To enable others to understand the nature 'and construction of my invention, I will proceed to describe it with reference to the drtiyings.

A represents the tool-hsndle, of any suitehle external form, and i'ntended to be of any appropriate Wood, or other like material, and furnished at its inner end with an annular ferru'le, a. Formed centrally within this handle is a longitudinal chamber, Z), of cylindrieal form. The file, chisel, or other tool, indicated at B, is furnished with the ordinary tapering shanl: c, which has lscrewed upon it a cylindrical nut, O, which may he of steel or hardencd iron, and the internal construction of which is shown more fully in fig. 2; the said nut being provided with an internal' screw-thread, whereby it is firmly fixed upon the shank of the tool, and also with an external screw-thread, as shown more fully inffig. 1, which, when the shank is inserted into the chember b, of the handle, is screwed into the snrrounding sides of the saidchamber by t'urning the tool around upon its longitudinal axis, thus embedding the external thread of 'the nut in the said sides of the Chamber, ns shown iu fig. 1, and therehy firmly securing the tool to the hnndle, the tool being capable of ready detachment fr'om the b'andle by simply turning. the same in a reverse direction to that just mentio'ned, thus' unscrewing the nut from the said handle.

What I claim as my invention, and desire to secure by Letters Patent, is-

The intornally and externallyLthreaded nut C, in combination with the ohamberedhaindle A, for holding the shank e of the tool B, substantially as specified. I

H. C. STORRS.

Witnesses:

J. W. CoouBs, A. LE CLEno. 

